Yes but the default ID and password still missing. And, to the best off my knolage those are used by DECT phones to register in the system.
So, again, where i can find them?
I'm not sure what you mean by they are missing:
If you select "I will configure the phone myself" like I mentioned, you will see them on the final screen:
And for supported DECT phones, they will automatically load those parameters from 3CX provisioning.